19946116 has 6 divisors (see below), whose sum is σ = 34905710. Its totient is φ = 9973056.

The previous prime is 19946107. The next prime is 19946119. The reversal of 19946116 is 61164991.

It can be written as a sum of positive squares in only one way, i.e., 18096516 + 1849600 = 4254^2 + 1360^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19946119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493261 + ... + 2493268.

Almost surely, 2^19946116 is an apocalyptic number.

It is an amenable number.

19946116 is a deficient number, since it is larger than the sum of its proper divisors (14959594).

19946116 is a wasteful number, since it uses less digits than its factorization.

19946116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986533 (or 4986531 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The square root of 19946116 is about 4466.1074774349. The cubic root of 19946116 is about 271.1977696089.

The spelling of 19946116 in words is "nineteen million, nine hundred forty-six thousand, one hundred sixteen".